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Abstract
Mooring of offshore structures is a well-known concept in the naval and offshore Oil & Gas sectors, but has been proven to cause complications and be infeasible in the newer wave and wind energy sectors when applying the traditional solutions and experience. Early-stage wave energy concepts are often planned for deployment in shallow to intermediate water depths, where the traditional catenary systems are insufficient, and have experienced several failures due to large line loads. As a result, considerable amount of line and anchor material is often required and causes undesirably high mooring cost. A need for applying
more novel systems and materials is present in order to increase durability and decrease the cost. This study focusses on three different mooring systems, which have been considered in earlier studies and makes direct comparison between the lifetime cost using existing cost databases and design procedures stated in design standards from certification companies. All systems are primarily composed of synthetic lines, and are designed using validated numerical models together with a surrogate based optimization routine. Furthermore, the study investigates the sensitivity on line tensions from varying environmental loads in order to quantify the sensibility and the importance of pre-assessment of the conditions at the expected deployment site.
Original language | English |
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Title of host publication | ASME 2018 Proceedings of the 37th International Conference on Offshore Mechanics and Arctic Engineering - OMAE : OMAE2018 |
Number of pages | 8 |
Volume | 1: Offshore Technology |
Publisher | American Society of Mechanical Engineers |
Publication date | 2018 |
Pages | V001T01A069 |
Article number | OMAE2018-78238 |
ISBN (Electronic) | 978-0-7918-5120-3 |
DOIs | |
Publication status | Published - 2018 |
Event | 37th International Conference on Ocean, Offshore and Arctic Engineering - Madrid, Spain Duration: 17 Jun 2018 → 22 Jun 2018 Conference number: 37 https://www.asme.org/events/omae |
Conference
Conference | 37th International Conference on Ocean, Offshore and Arctic Engineering |
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Number | 37 |
Country/Territory | Spain |
City | Madrid |
Period | 17/06/2018 → 22/06/2018 |
Internet address |
Series | International Conference on Offshore Mechanics and Arctic Engineering. Proceedings |
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ISSN | 1523-651X |
Keywords
- Mooring
- Renewable energy
Fingerprint
Dive into the research topics of 'Sensitivity and Cost Analysis of Mooring Solutions for Large Renewable Energy Structures'. Together they form a unique fingerprint.Projects
- 2 Finished
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Mooring solutions for large wave energy converters
Kofoed, J. P., Thomsen, J. B., Kramer, M. B., Ferri, F. & Pecher, A.
01/07/2014 → 30/06/2018
Project: Research